中压配电网规划中供电分区划分方法研究

Research on Power Supply Zoning Method in Medium-voltage Distribution Network Planning

针对中压配电网规划中输电能力较弱,分区划分困难的问题,采用映射规约技术将各中压用户复杂的电力数据进行梳理,并根据梳理结果划分为各区域供电等值模型,完成配电网的自动划分;通过建立的等值模型对供电分区电力进行线路规划,应用三角形联结的方式将供电区域电路划分为等值的线路,提高输电能力的同时增加电网稳定性;利用动态规划检测前跟踪(Dynamic Programming-Track Before Detect DP-TBD)对等值模型输电情况进行分析。通过试验,提出方案供电等值模型最大输电量为10 kV,运行稳定性达到85%以上。

In response to the problem of weak transmission capacity and difficulty in partitioning in the planning of the medium-voltage distribution network,this paper sorts out the complex power data of each medium voltage user through the mapping protocol technology,divides it into regional power supply equivalent models according to the sorting results,and completes the automatic division of the distribution network.Through the established equivalent model,the power supply area is routed planning,the triangular connection method is used to divide the power supply area circuit into equal-valued lines to improve the transmission capacity while increasing the stability of the grid.Dynamic Programming-Track Before Detection(DP-TBD)is used to transmit power to the equivalent model and the situation is analyzed.Through experiments,the maximum power transmission capacity of the power supply equivalent model in this study is 10 kV,and the operation stability reaches more than 85%.